may maintain
Regular verb: maintain - maintained- maintained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may maintain
you may maintain
she may maintain
we may maintain
you may maintain
they may maintain 	I may be maintaining
you may be maintaining
she may be maintaining
we may be maintaining
you may be maintaining
they may be maintaining	I may have maintained
you may have maintained
she may have maintained
we may have maintained
you may have maintained
they may have maintained	I may have been maintaining
you may have been maintaining
she may have been maintaining
we may have been maintaining
you may have been maintaining
they may have been maintaining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not maintain
you may not maintain
she may not maintain
we may not maintain
you may not maintain
they may not maintain 	I may not be maintaining
you may not be maintaining
she may not be maintaining
we may not be maintaining
you may not be maintaining
they may not be maintaining	I may not have maintained
you may not have maintained
she may not have maintained
we may not have maintained
you may not have maintained
they may not have maintained	I may not have been maintaining
you may not have been maintaining
she may not have been maintaining
we may not have been maintaining
you may not have been maintaining
they may not have been maintaining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I maintain?
may you maintain?
may she maintain?
may we maintain?
may you maintain?
may they maintain? 	may I be maintaining?
may you be maintaining?
may she be maintaining?
may we be maintaining?
may you be maintaining?
may they be maintaining? 	may I have maintained?
may you have maintained?
may she have maintained?
may we have maintained?
may you have maintained?
may they have maintained? 	may I have been maintaining?
may you have been maintaining?
may she have been maintaining?
may we have been maintaining?
may you have been maintaining?
may they have been maintaining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not maintain?
may you not maintain?
may she not maintain?
may we not maintain?
may you not maintain?
may they not maintain? 	may I not be maintaining?
may you not be maintaining?
may she not be maintaining?
may we not be maintaining?
may you not be maintaining?
may they not be maintaining? 	may I not have maintained?
may you not have maintained?
may she not have maintained?
may we not have maintained?
may you not have maintained?
may they not have maintained? 	may I not have been maintaining?
may you not have been maintaining?
may she not have been maintaining?
may we not have been maintaining?
may you not have been maintaining?
may they not have been maintaining?